TiNspire CX: How to find the Area between 2 Functions

To find the enclosed area between cos(x) and sec(x)^2 as shown below

we use Calculus Made Easy at www.Tinspireapps.com , go to option 8 : ENCLOSED AREA under the INTEGRATION tab as shown below:

We enter upper and lower functions and x bounds as shown below:

to arrive at the decimal answer

or as an exact answer

Voila , problem solved.